________________________________________________________________________________

New Holland 5640 Troubleshooting

New Holland 5640 Engine Troubleshooting

Engine difficult to start or won't start: Fuel filter element clogging. Clean the filter or install new filter element. Air in the fuel pipes. Bleed the fuel pipes. Fuel injection nozzles fault. Change fuel injection nozzles. Fuel injection pump malfunction. Repair or change injection pump.

Engine stops suddenly during operation: Fuel injection pump timing is wrong. Adjust as recommended. Dirty fuel filter. Change filter element. Coolant temperature is low. Engine is not warmed up to the required temperature.

Engine starts but stalls suddenly: Dirty fuel filter. Service the filter. Fuel injection pump is faulty. Repair or replace injection pump. Air filter is clogged. Clean or change.

Engine overheating: Clogged radiator fins or leaking radiator cap. Install new cap or clean radiator. Low engine coolant. Fill radiator to proper level and check components for faults. Fan belt slipping or worn. The fan belt needs to be replaced. Low engine oil level. Fill the crankcase with engine oil.

Engine power is insufficient: Fuel injection nozzles are damaged or dirty. Clean or change injection nozzles. Fuel lines or hoses clogging. Clean fuel lines and hoses. Intake air restriction. Clean or replace the element. Cylinder head gasket defective. Replace cylinder head gasket.

Abnormal engine noise or knocking: Engine not warmed up. Warm up to required temperature. Engine oil level is insufficient. Add oil to the engine crankcase. Fuel injection pump timing is wrong. Adjust fuel injection pump as required. Pistons are broken or worn. Replace the pistons. Misaligned or defective connecting rod. Connecting rod needs to be replaced or aligned.

Engine stalls when idling: Wrong adjustment of low idle speed. Correct low idle adjustment. Valve clearance is not correct. Have it adjusted. Fuel injection pump is faulty. Replacement or repair required.

Low oil pressure: Low oil level. Fill crankcase to proper oil level. Worn oil pump. Repair or change. Clogged oil filter element. Clean or replace engine oil filter element.

New Holland 5640 Transmission Troubleshooting

Transmission makes noise: Worn gears or incorrect backlash. Install new gears and adjust backlash properly. Worn or bent shift forks. Replace the shift forks. Shaft splines are worn or stuck. Replace the shaft. Lack of transmission oil supply. Fill up the transmission oil. Bearings are broken or worn. Bearings replacement required. Transmission oil is dirty. Change the oil.

Hard shifting: Stuck or worn gear shift linkage. Install new shift linkage. Clutch is out of adjustment or defective. Adjust clutch or replace if required. Damaged or worn gear shift forks. Change defective shift forks. Gearshift mechanism malfunction. Identify and replace failed parts.

Insufficient transmission oil pressure: Low oil level. Fill the transmission housing to proper oil level. Dirty transmission fluid filter (if fitted). Replace or service transmission fluid filter. Relief valve is stuck. Replace the valve.

Transmission fluid leakage: Damaged seals or gaskets. Change defective gaskets or seal. Transmission oil level is high. Correct the oil volume.

New Holland 5640 Hydraulics Troubleshooting

Hydraulic system is overheated: Improper type of hydraulic oil. Use the proper type of oil. Contaminated hydraulic oil. Change hydraulic oil. Air in the hydraulic system. Air bleeding. Main relief valve is defective. Replace relief valve.

Insufficient hydraulic oil pressure: Insufficient hydraulic oil. Fill the system to proper hydraulic oil level. Clogged hydraulic fluid filter element. Change the hydraulic filter element or service if required. Hydraulic piping is leaking. Check the hydraulic system and fix leaks. Hydraulic control valve block is set improperly. Set properly. Hydraulic pump malfunction. Change or repair hydraulic fluid pump. Hydraulic cylinder failure. Repair or replace hydraulic cylinder.

3-point hitch won't lift or lifts slowly: Defective hydraulic pump. Change or repair hydraulic fluid pump. Main relief valve failure. Relief valve replacement required. Hydraulic control valve block is damaged. Repair or change the valve. Defective hydraulic cylinder. Repair or replace hydraulic cylinder. Insufficient hydraulic fluid. Fill up the hydraulic fluid. Clogged hydraulic oil filter. Replace hydraulic filter element or service if necessary. Heavy load on the hitch. Reduce loading.

3-point hitch cannot be lowered or lowering is too slowly: Hydraulic cylinder is defective. Change or repair hydraulic cylinder. Hydraulic control valve block is not set properly. Use the proper setting. Damaged hitch rock shaft. Change the shaft. Hitch is out of adjustment. Adjustment is required.

3-point hitch jerks when lower or lift: Contaminated hydraulic fluid. Change hydraulic fluid. Hydraulic pump malfunction. Repair or replace hydraulic fluid pump. Air in the hydraulic system. Air bleeding. Hydraulic spool valve is faulty. Repair or replace hydraulic valve. Hydraulic cylinder malfunction. Replace or repair hydraulic cylinder.

New Holland 5640 Steering Troubleshooting

Steering wheel free play is excessive: Steering column shaft or coupling has maximum wear. Replace faulty component. Hydraulic steering pump is defective. Install a new steering pump. Loose or worn steering linkage components. Check and replace as required. Hydrostatic steering metering unit has wear or malfunction. Check and replace as required.

Difficult steering: Air in the hydraulic steering system. Need to bleed air. Steering filter is plugged. Clean or change steering filter. Steering oil level is low. Fill up steering oil to required level. Hydrostatic steering unit is damaged or worn. Inspect and replace as required. Steering pump is worn. Install a new steering pump. Steering pump control valve is faulty or stuck. Clean or install new control valve. Incorrectly installed or worn steering column. Install the steering column correctly or replace it. Tyre pressure is uneven. Adjust the tyre pressure. Improper toe-in. Adjust toe-in properly. Steering cylinder leaks. Change worn piston rod or damaged cylinder seals.

Tractor pulls to left or right: Hydrostatic steering unit is damaged or worn. Inspect and change as required. Steering cylinder failure. Replace or repair hydraulic steering cylinder. Not adjusted toe-in. Check and adjust toe-in. Loose or worn steering linkage components. Inspect and replace as required. Worn or incorrectly adjusted or worn front wheel bearings. Install new bearings or adjust it correctly. Uneven wear on front tires. Replace the tires.

New Holland 5640 Electrical Troubleshooting

Battery cannot be charged: Loose or corroded wire connections. Tighten or service connections. Defective electrical terminal connectors. Change terminal connectors. Defective battery. Replace the battery. Defective or loose belt. Adjust belt tension or replace belt.

Starter cranks slow: Battery voltage is low. Battery is drained, charge it. Battery is draining quickly. Service charging system or replace battery. Disconnected wires or corroded battery terminals. Connect wiring properly or install new terminals.

Starter doesn't crank: Battery is discharged or worn. Charge or change the battery. Battery cables are disconnected or improperly connected. Inspect cables and connect properly. Battery capacity is low. Battery is drained, recharge it. Faulty starter motor. Repair or replace starter.